1
Placebo treatment had no significant effect, and there were no changes in reactive hyperemia or the response to sublingual nitroglycerin.
2
A high resolution ultrasound was used to measure brachial artery diameter at rest, after reactive hyperemia, and after sublingual nitroglycerin.
3
The brachial artery vasodilator response to sublingual nitroglycerin was independent of coronary endothelial responses or the presence of coronary artery disease.